psalm.phar -v
Uncaught Error: Class "Composer\InstalledVersions" not found in phar:///home/psalm.phar/src/Psalm/Internal/CliUtils.php:116
Stack trace:
#0 phar:///home/psalm.phar/src/Psalm/Internal/Cli/Psalm.php(188): Psalm\Internal\CliUtils::requireAutoloaders()
#1 phar:///home/psalm.phar/src/Psalm/Internal/IncludeCollector.php(31): Psalm\Internal\Cli\Psalm::Psalm\Internal\Cli\{closure}()
#2 phar:///home/psalm.phar/src/Psalm/Internal/Cli/Psalm.php(189): Psalm\Internal\IncludeCollector->runAndCollect()
#3 phar:///home/psalm.phar/psalm(7): Psalm\Internal\Cli\Psalm::run()
#4 /home/psalm.phar(14): require('...')
#5 {main}
(Psalm (unknown version) crashed due to an uncaught Throwable)